Adding machine



June 17 1924. 1,497,918

U 1 H. LANDSIEDEL ADDING MACHINE Filed Jan. '10. 1921 4 Sheets-Sheet 1 'IIWENTOR.

HARRY LANDS/FUEL,

I I i2? 71 1s ATTOIZIEYS.

June 17 19 24. 1,497,918

H. 'LANDSIEDEL I ADDING MACHINE Filed Jan. 10. 1921 4 Sheets-Sheet 2 INVENTOR.

HARRY LANUSIEDEL,

' I BY I H/S 15% mvns.

June 17 1924. 1,497,918

H. LANDSIEDEL ADDING MAC HINE Filed Jan. 10,. 1921 4 Sheets-Sheet 5 d 1 IIVVENTOR. 16a

HARRY LANDS/EDEL,

H/S A RNEYS.

June 17 1924.

H. LANDSIEDEL v ADDING MACHINE Filed Jan. 10 192] 4 Sheets-Sheet 4 INVENTOR.

HARRY LANDS/EDEL,

5 H/S A ERNEYS.

i Patented June 17, 1924.

UNITED STATESVPATEFNT OFFICE.

HARZBY LANDSIEDEL, OF NORWOOD, OHIO,' ASSIGNOR TO THE DALTON ADDING MACHINE COMPANY,- OF CINU INNA.TI,.OHIO, A CORPORATION OF OHIO.

ADDING MACHINE.

Application filed January 10, 1921. serial no. 430,107.

To all whom it may concern:

Be it known that I, HARRY LANDsIEnn a citizen of the United'states, residing at Norwood, Hamilton County, and State of Ohio, have invented a new and useful Adding Machine, of which the following is a specification. c

This invention relates to adding machines, and has special reference to the framing and casing for supporting and enclosing the adding machine mechanism.

It hasbeen the usual practice to provide cast side frames for supporting the operating mechanism, and,-after machining them,

to secure the cast side frames to a base castmg. A separate casmg or cover has been provided to enclose the machine mechanism and the framing supporting such mechanism. This is an expensive construction, since the frame castings, the base castings and other frame parts must be built into the machine pro-per, and they serve no other purpose than-to support the various machine units.

The present inventionentirely overcomes and eliminates many of the existing objections; provides a--construotionwholly dispensing with the necessity of a separate cover or case for the machine; largely reduces the cost of construction; and avoids many dangers of errors and inaccuracies in assembling the machine;

, An object of the present invention is to provide a construction comprising pressed metal frames, instead of cast frames, for supporting the various operative mecha nisms of an adding machine, and to arrange .the pressed metal frames 'so that they will themselves serve as a portion of the case or cover of the machine, and as supports for case panels which complete the case. By this construction and arrangement the case itselfserves as a supporting frame for the operative mechanism.

Another object of the invention is to-provide an adding machine with side frames and a base composed of thin sheet steel so as to enable the various holes to be punched instead of being drilled as is required when cast iron frames are used.

A further object is to arrange the frames which are of pressed metal, so, that every important unit-of the internal mechanism of the machine secured its location with reference to said frames, thus obtaining greater accuracy in. bringing together the various units of the machine in their cooperative relationshipr An advantage of this construction resides in the fact that since all of the important holes, in which the different parts are supported, are formed in the side frames themselves, there is no opportunity for an accumulated and increasing error in assembling the machine. It is well known that this is not true when several frame members are employed for supporting the machine mechanisms.

-An additional object is to provide an adding machine with a base unit construction to which the side frames are. fastened by screws or dowels entering from the sides in order to eliminate the necessity of forming feet or pedestals on the frames for the purpose of fastening them to the base by screws entering from the top orfrom the bottom, as in the case of the use of cast frames.

Another object of the invention is'to.pro-

vide case panels for closing the openings in the side frames to form a complete cover in which the adding machine mechanism is enclosed. Another object of the invention is to provide a novel construction for obtaining the desired rigidity in the ,frame and case structure, whetheria'part of the structure be in the form of 'a casting or note In this connection it may be mentioned that a part of the base may be in the form of a' skeletonized casting or other form of casting, if desired. In case a skeletonized base gasting isnsed, I prefer to reinforce such asting with flat steel plates which serve td support portions of the operating mechanism of the machine, but it will be apparent that this construction may also be varied if desired. K

There are other objects and advantages to be derived from my invention, all of which will be apparent from the following description in which reference is made to of the base of the machine showing the formation of the base when constructed 0 pressed steel.

Fig. 4 is an inverted or bottom plan view of the base of the machine when a casting is employed as a frame work for attachment of the pressed steel side frames. 4

Fig. 5 is a cross sectional view on the line AA of F ig.- 1, showing devices for retaining thecase panels in connection with the pressed metal side frames, which support the machine mechanisms, and which also form parts of the enclosing case or cover. In this view of the drawing a pressed steel base is employed.

Fig. 6 is a similar sectional view and may be considered as taken on the same sectional line showing a 'base'casting for connection with the pressed steel side frames.

Fig. 7 is a sectional view showing a latch connection between different parts of the case.

As best shown in Fig. 2,-the two side frames are composed of pressed metal and for this purpose I have found pressed steel appropriate. The side frames are stamped and punched into proper skeleton form, to provide openings which are finally closed by the removable panels and to provide holes for the reception of the necessary tie-rods 'and shafts and other binding connections embodied in the machine. As' specifically shown the invention is designed and formed for use in a Dalton adding machine, though ward end. The side frames when secured tothe base in this manner do not require side edges it is apparent that the invention may be employed with equal advantages in various other types of adding machines and registers. The frames are formed so as to provide portions that will serve as parts of the case or cover, whereby a complete case or cover is formed when the removable panels are secured to said frames.

Proper rigidity may be given to the manner.

frames by bending or pressing the edges to form inwardly extended flanges 1. The flangesl are preferably and upper edges of the frames and, if desired, may be provided along the lower edge, though in many cases such flanges will not be needed along the lower edges of the frames. As shown in Figs. 2, 4 and 6, a base casting 2 may be used. When such a casting is used it is given the usual machining operations on the various bosses so that the side frames and the base plates can be accurately fastened thereto by screws 2 passing through the sideframes and into bosses on the base casting, as will be readily understood byreference to Fig. 6. As shown (Fig. 4) there 'are two pressed steel base plates secured to the base casting 2, the baseplate 3 being at the rear end of the base and the'base plate 4 being at the forformed along the flanges along their lower edges, either for sired,'and the cast base frame'2 may be omitted. In Figs. 3 and 5, a construction is shown in which the pressed steel plate base-5 is provided with a depending flange 6 around its .edge for purpose of attachment to" the lower edges of the side frame by means of screws 6*. This provides the necessary rigidity around the edges of the pressed steel base, and the necessary rigidity of the intermediate portion of the base may be obtained by ressing the base to form reinforcing ribs I As clearly shown in Fig. 2, the side frames support and are tied together by various'rods and shafts which support the operative mechanisms of the'machine and which heretofore have been supported by the cast frames forming no partof the case or cover in which the machine is enclosed. For instance, the rod or shaft 8 is supported by the side frames forming a part of the case of the machine, near the top thereof. The shaft 8'may be identified as the usual shaft which supports a part of the printing mechanism (the type-carriers and racks) in a Dalton adding machine, fragments of which are shown at 9 (Fig. 2). Toward the forward end of the machine from the shaft 8 the usual shaft 10 is secured to and supported by the side frames, and another usual shaft 11 is similarly supported by the side frames in proper position relatively to'the shaft 10. The shafts 10 and 11 support the plates 12 of theadding mechanism, while the shafts 11 supports parts 13-of the printing mechanism.

The paper carriage rail 14 is rigidly attached to the side frames so as to support the paper carriage '(Fig. 1) in the usual If desired, the side frames may be additionally bound together by tie plates 15 attached to the flanges 1 of the side frames.

As clearly shown in Fig. 1, each of the side frames supportsa side panel 16 fitting over and closing the openings in the frames. The panels 16 may be pressed to any desired shape to provide fiat borders or edges '16 which press closely against the outer the clips or fingers 17 are along the upper edges of the side panels, while the lower edges of the side panels are supported and held in contact with the side frames by spring clips or fingers 19. The s ring clips or fingers 19 extend across, and bear upon Lil) the lower portions of the side frames so\as to support the side panels and prevent them fromslip in from their pro r positions on the s1 e rames, and are also arranged so that they will latch the side panels in connection with the side frames. The latching effect is obtained by bending the spring clips or fingers 19 in the manner shown in Figs. 5 and 6. This construction permits the side panels to be easily applied; and also permits etachment of t e side panels when it is desired to remove them for any purpose, as for obtaining access to the mechanism of the machine. In this connection it may be mentioned that the openings in the side frames are desirable in order to afford access to the mechanism of the machine so that the machine may be kept in repair and may be cleaned or oiled from time to time, and given the needed attention for other purposes.

The rear panel 20 closes the space-between ,the side frames and between-the top and base of the machine at the rear end. The panel 20 is also composed of pressed metal and is formed with flat bordersor edges 20 which press. closely against the outer surfaces of the rear flanges 1 to complete the rear end of the case. .The anel 20 is held in connection with the side 21 able spring clips 21. The spring cli s 21 are attached to the panel 20, and when 516 panel 20 is applied the ends of the spring clips are passed throu h notches 22 in the flanges 1 at the rear of t e side frames and then the panel is raised so asto move the spring clips above the notches 22 and into binding engagement with the flanges 1. The bindingpressure of the spring clips 21 against the flanges 1 of the side frames may be suflicient to support the rear panel; but, if desired, the rear panel may be additionallysupported, as by a latch 21 effecting latching engagement with another part of the case.

The upper panel 23 rests upon the flanges 1 at the top of the side frames and is retained in place by screws 24. As shown the latch 21 has releasable latching engagement with the panel 23.

The front panel 25 in a Dalton adding machine is of angular formation, as clearly shown in Fig. 1, so as to conform to the requirementsofthe key-board. An opening 26 is provided in the front panel for the accommodation of the ends of the key levers (Fig. 1) which support the finger buttons or keys in' a conveniently arranged key-board above said opening. The front panel is held by screws 25 and spring clips 25?.

-The toppanel 22 meets the upper edge of the panel 25 and extends rearwardly a suffi- 'cient distance under the paper carriage.

The upper panel is secured to the side frames by screws 27 and supports the cover 28 forminga housing for a part of the rinting mechanism of the machine, an also amesby releas- I 'eratin thereof ex osed and forming exposed supports the mechanism 29 for operating the ribbon 30. C

From the foregoing it is apparent that my present invention completely accomplishes all of its intended purposes. It dispenses with the necessity of using cast metal supportin frames for the operating mechanism of t e machine, and also provides a much more convenient manner for obtaining accuracy in the assembling of the machines. It wholly avoids danger of accumulated error in the assembling of the machines, as sometimes occurs when'numeroussu porting frames are employed, as has been the case heretofore. An ornamental case is provided through which access may be easily obtained to the operating mechanism of the machines for any purpose.

As a result of these advantages it is apparent that the invention saves or avoids considerable expense'in the construction of adding machines and the like. Numerous parts heretofore employed are dispensed with; errors resulting from the use of many of the parts which are dispensed with are Wholly avoided; more convenient access to the interior of the machine is afforded; and numerous other advanta es are apparent.

I do not restrict mysel to the specific construction shown and described, since it may be widely varied without departure from the principle thereof. What I claim and desire to secure by Letters Patent, is

1. In an adding machine containing operating mechanism, the combination with pressed metal side frames supporting the opmechanism and having portions thereo exposed and forming exposed parts of an enclosing case and having openings therethrough to afford access to the operat-.

ing mechanism of the machine, of case panels secured to said frames and closing said openin and together with the exposed portions 0 said side frames forming a case enclosing the operating mechanism of the machine.

2. In an adding machine containing operether with the exposed portions of the rames forming a complete case enclosing the operating mechanism.

3. n an adding machine-containing operating mechanism, the combination with pressed metal side frames supporting the operating mechanism and having portions parts of an enc osing case and having openings therethrougli to afford access to the operat ing mechanism of the machine, of case panels secured to said frames and closing said openings and together with the exposed por' tions said side frames forming a case enclosing the operating mechanism of the machine, a .base rigidly secured to the side frames between the lower portions thereof, and elements independent of the operating mechanism rigidly connecting the upper portions of said frames and enclosed within the case formed as aforesaid.

4. In an adding machine containing operating mechanism, a case for enclosing the operating mechanism comprising pressed metal side frames provided withinwardly extended portions forming exposed portions of the case, said side frames having open-- ings therethrough to aiford access to the op-' metal side frames provided with inwardly extended portions forming exposed portions of the case, said side frames having openings therethrough to afford access to the operating mechanism, case panels connected to said frames and closing said openin s and being rcmovable'to afford access to t e operating mechanism of the machine, other case panels removably connected to said inwardly extended portions of the side frames and together with the first-named panels and the exposed portions of the'side frames forming a complete case enclosing the operating mechanism, a base rigidly secured between the lower portions of the side frames, and connections between. the upperrportions of the side frames enclosed within the case formed as aforesaid.

HARRY LANDSIEDEL. 

